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US 12,754,490 B2Granted
Electrostatic image development toner
AssigneeZeon Corporation
InventorMasashi Watanabe
Life of this patent
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Abstract
Provided is an electrostatic image development toner comprising colored resin particles and an external additive, the colored resin particles containing a binder resin, a colorant, an aromatic vinyl thermoplastic elastomer having a polymerizable unsaturated bond, and a release agent, wherein the release agent is an ester compound having a glycerol skeleton.
Claims16
An electrostatic image development toner comprising colored resin particles and an external additive, the colored resin particles containing a binder resin, a colorant, an aromatic vinyl thermoplastic elastomer having a polymerizable unsaturated bond, and a release agent,
- wherein the release agent is a triester of glycerol,
- the binder resin is a polymer of polymerizable monomers comprising a styrene-based monomer, a (meth)acrylate monomer, and a cross-linkable polymerizable monomer, and
- the aromatic vinyl thermoplastic elastomer is a composition comprising a styrene-isoprene block copolymer and a styrene-isoprene-styrene block copolymer.
Dependencies are inferred from the claim text.